US20190351945A1 - Chassis for a motor vehicle - Google Patents
Chassis for a motor vehicle Download PDFInfo
- Publication number
- US20190351945A1 US20190351945A1 US16/408,728 US201916408728A US2019351945A1 US 20190351945 A1 US20190351945 A1 US 20190351945A1 US 201916408728 A US201916408728 A US 201916408728A US 2019351945 A1 US2019351945 A1 US 2019351945A1
- Authority
- US
- United States
- Prior art keywords
- longitudinal
- limb
- longitudinal member
- chassis
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000004888 barrier function Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/082—Engine compartments
Definitions
- the chassis according to the disclosure for a motor vehicle comprises a longitudinal axis, at least one longitudinal member and a front bumper fastened to the longitudinal member.
- the front bumper comprises a region protruding over the longitudinal member in the lateral direction and/or in the transverse direction.
- the chassis comprises a support.
- the support has a transverse limb and/or lateral limb and a longitudinal limb and/or limb in the longitudinal direction.
- the longitudinal member has an outer face.
- the support is fastened to the outer face of the longitudinal member.
- the support is fastened at the transverse limb to the outer face of the longitudinal member.
- the transverse limb extends laterally and/or transversely to the outer face.
- the longitudinal limb of the support adjoins the transverse limb laterally on the outside and extends in the longitudinal direction, in the direction away from the front bumper.
- the longitudinal limb may extend parallel to the longitudinal member toward the rear.
- FIG. 2 The detail shown in FIG. 1 of a chassis according to the disclosure after a collision is shown schematically in FIG. 2 .
- the longitudinal member 2 Due to the collision with an obstacle 19 with a small overlap, the longitudinal member 2 has been deformed.
- the transverse limb 6 has also been deformed.
- the transverse limb has been bent around a vertical axis, i.e. z-axis.
- the pushing together of the region 4 of the front bumper protruding over the longitudinal member, the transverse limb 6 supported by the longitudinal limb 7 and the longitudinal member 2 produces a stable structure which deflects the load caused by the impact and pushes the vehicle to the side.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
- This patent application claims priority to German Application No. DE 102018207597.2 filed on May 16, 2018, which is hereby incorporated by reference in its entirety.
- The present disclosure relates to a chassis for a motor vehicle and a motor vehicle.
- In connection with the safety of motor vehicles, these motor vehicles are generally subjected to various crash tests and have to meet certain standards for the registration thereof. For specific safety standards, for example the IIHS (Insurance Institute for Highway Safety) safety protocol, trucks also have to fulfill specific requirements in connection with crash tests with an obstacle having a small overlap (SORB—Small Overlap Rigid Barrier). The aforementioned standards are also increasingly implemented globally for motor vehicles, in particular trucks and mini-vans.
- The aforementioned SORB test requirements represent a requirement for trucks, vans and mini-vans since, in comparison with passenger motor vehicles, generally these vehicles have a significantly shorter hood measured in the longitudinal direction, i.e. along an x-axis, from the front face of the vehicle in the direction of the rear face, with at the same time a greater vehicle mass. In other words, the spacing from the front face or front side of the vehicle to the driver's cab is significantly shorter than in passenger motor vehicles. This has the result that in the event of a crash with an obstacle with a small overlap (SORB) the vehicle tends to be compressed from the front instead of rebounding from the barrier and causing a deflection of the load from the back-up structure, in particular the driver's cab or the passenger compartment. Transferring the collision load directly into the back-up structure does not fulfill the required safety standards in this type of vehicle and/or platform, in particular when the vehicle structure is overloaded.
- In the aforementioned vehicles, in comparison with passenger motor vehicles, firstly less space is available in order to absorb or to deflect impact energy. Secondly, these vehicles are heavier than passenger motor vehicles which has the result that a greater impact energy has to be absorbed or deflected by the vehicle structure. Moreover, these vehicles are generally wider, i.e. longer in the y-direction and/or transverse direction or lateral direction than passenger motor vehicles, with the result that the relatively defined y-overlap of the SORB obstacle is also greater, by for example 25%, relative to the vehicle width. In order to achieve rebound, therefore, the vehicle has to be moved to a greater extent and/or over a longer distance to the side in the y-direction in order to achieve rebound or glancing-off.
- In passenger motor vehicles, front bumpers which protrude laterally over the longitudinal member of the chassis are generally provided in order to fulfill the safety requirements in connection with collisions with an obstacle with a small overlap. In the longitudinal direction and/or x-direction behind the protruding region of the bumper, generally devices are attached to the longitudinal member, for example blocks, the protruding region of the bumper being pushed thereagainst in the case of a collision. Examples thereof are disclosed in the
documents DE 10 2013 012 769 A1, US 2014/0062129 A1 and U.S. Pat. No. 9,180,828 B2. - In view of the described background, it is the object of the present disclosure to provide a chassis for a motor vehicle, in particular for a truck, van or mini-van which improves the rebound behavior in connection with SORB tests. A further object is to provide a corresponding motor vehicle.
- The chassis according to the disclosure for a motor vehicle comprises a longitudinal axis, at least one longitudinal member and a front bumper fastened to the longitudinal member. The front bumper comprises a region protruding over the longitudinal member in the lateral direction and/or in the transverse direction. The chassis comprises a support. The support has a transverse limb and/or lateral limb and a longitudinal limb and/or limb in the longitudinal direction. The longitudinal member has an outer face. The support is fastened to the outer face of the longitudinal member. The support is fastened at the transverse limb to the outer face of the longitudinal member. The transverse limb extends laterally and/or transversely to the outer face. The longitudinal limb of the support adjoins the transverse limb laterally on the outside and extends in the longitudinal direction, in the direction away from the front bumper. The longitudinal limb may extend parallel to the longitudinal member toward the rear.
- The support may be fastened at the transverse limb to the outer face of the longitudinal member at a spacing from the front bumper. The spacing is advantageously fixed and/or dimensioned such that, in the case of a collision with an obstacle with a small overlap (SORB), the region of the front bumper protruding in the lateral direction over the longitudinal member is pushed against the support and the support is pushed with its longitudinal limb against the outer face of the longitudinal member.
- The region protruding over the longitudinal member may, in particular, have a length of 100 millimeters to 200 millimeters, for example a length of 150 millimeters. The spacing between the transverse limb and the front bumper may be between 190 millimeters and 210 millimeters, for example 200 millimeters. The transverse limb may, in particular, have a length of 100 millimeters to 200 millimeters, for example a length of 150 millimeters. The longitudinal limb may, for example, in particular have a length of 90 millimeters to 120 millimeters, for example a length of 105 millimeters.
- The chassis includes two longitudinal members, for example a longitudinal member extending along the right-hand side of the vehicle and a longitudinal member extending along the left-hand side of the vehicle. Advantageously, in each case a described support is fastened to both longitudinal members, in each case to the outer face.
- The chassis has the advantage that in a simple manner it deflects a load which is present due to a collision with an obstacle with a small overlap and significantly improves the rebound behavior. In particular, the absorption of a load is reinforced by the longitudinal member. This permits rebound even in vehicles having a high weight and a small spacing between the front bumper and the passenger compartment and/or driver's cab.
- The support is also arranged relative to the longitudinal member in the vertical direction, i.e. in the z-direction such that the longitudinal limb is level with the outer face of the longitudinal member. In a preferred variant, the transverse limb has an end face which bears against the outer face of the longitudinal member. For example, the end face may be fastened directly to the outer face of the longitudinal member.
- The support may be designed to be L-shaped. In particular, the longitudinal limb may be arranged perpendicular to the transverse limb. In a further advantageous variant, the transverse limb is longer than the longitudinal limb. Moreover, the longitudinal limb may have an end face. In the case of a collision, this has the advantage that the longitudinal limb is pushed with the end face at an angle which is advantageous for the transmission of a load, for example 45 degrees (45°), against the outer face of the longitudinal member.
- In a further variant, the transverse limb of the support is arranged relative to its longitudinal position on the longitudinal member, in particular the position in the x-direction, such that it is aligned with the front line of a position for a drive train. In other words, the transverse limb may comprise a front face which is arranged at the same longitudinal position as a front face of the drive train. In this manner, in the case of a collision the drive train is protected, on the one hand, and acts in a self-stabilizing manner, on the other hand. Additionally, the longitudinal member is stabilized in this region.
- Advantageously, the support is designed, in particular relative to its material and/or its stiffness and/or its shape, such that in the case of a collision with an obstacle with a small overlap (25% of the vehicle width) the transverse limb is deformed. In the case of a collision the transverse limb is bent about a vertical axis (z-axis). In this case, the vertical axis (z-axis) extends perpendicular to the longitudinal axis (x-axis) and perpendicular to a transverse axis (y-axis), wherein the longitudinal axis (x-axis) and the transverse axis (y-axis) extend in a horizontal plane perpendicular to one another.
- The support may be fastened to the longitudinal member by adhesive bonding and/or welding and/or screwing or in a different manner.
- The chassis may also be designed as a self-supporting body.
- In the case of a collision, the chassis according to the invention forms a solid multilayered rebound surface, made up of the front bumper, the longitudinal limb and the longitudinal member. In this case, the front bumper is supported by the longitudinal limb of the support which in turn is supported by the longitudinal member and by the drive train. This rebound surface enables rebound of the vehicle even for heavy loads and enables the vehicle to be pushed to the side of the obstacle with a small overlap. As a result, the obstacle is prevented from penetrating into a driver's cab or the passenger compartment or the back-up structure. The force acting mainly in the longitudinal direction and/or lengthwise direction or the x-direction on the vehicle due to the obstacle is thus deflected in the transverse direction and/or lateral direction or y-direction, wherein the extent depends on the rebound angle so that rebound and deflection of the load may be achieved.
- The motor vehicle according to the disclosure includes a chassis described above. It has the same advantages as the chassis according to the disclosure above. It is characterized, in particular, by improved test results in connection with collisions with an obstacle with a small overlap. The motor vehicle may be a truck, a van, a mini-van or a passenger motor vehicle.
- The disclosure is described in more detail hereinafter by means of exemplary embodiments with reference to the accompanying figures.
-
FIG. 1 shows schematically a detail of a chassis according to the invention in a view from below. -
FIG. 2 shows schematically the chassis shown inFIG. 1 after a collision with an obstacle with a small overlap. -
FIG. 3 shows schematically a detail of a motor vehicle according to the invention in a view from below. - The chassis 1 according to the disclosure shown in
FIG. 1 comprises alongitudinal axis 14. The x-direction is defined parallel to thislongitudinal axis 14. The y-direction extends horizontally perpendicular to the x-direction and transversely to thelongitudinal axis 14. The chassis may include twolongitudinal members 2. Afront bumper 3 is fastened to thelongitudinal member 2. Thefront bumper 3 extends laterally and/or transversely to thelongitudinal axis 14 and to thelongitudinal member 2. Thefront bumper 3 comprises aregion 4 protruding in the lateral direction and/or y-direction over thelongitudinal member 2 which, for example, has a length of 150 millimeters (150 mm), i.e. protrudes by 150 millimeters over thelongitudinal member 2. The chassis 1 additionally comprises asupport 5. Thesupport 5 comprises atransverse limb 6 and alongitudinal limb 7. - The
longitudinal member 2 has anouter face 11. Thesupport 5 is fastened at thetransverse limb 6 to theouter face 11 of thelongitudinal member 2. In the variant shown, thetransverse limb 6 has anend face 8. Theend face 8 bears against theouter face 11. Theend face 8 may be fastened directly to theouter face 11. However, other fastening options are also possible. The transverse limb may, for example, be adhesively bonded and/or screwed and/or welded to thelongitudinal member 2. - The
transverse limb 6 extends in the transverse direction, i.e. the y-direction, outwardly. In other words, the transverse limb protrudes to the side outwardly from theouter face 11. Thelongitudinal limb 7 adjoining thetransverse limb 6 to the side on the outside extends in the longitudinal direction, i.e. the x-direction, in the direction remote from thefront bumper 3. In other words, thelongitudinal limb 7 extends parallel to thelongitudinal member 2 toward the rear. - The
support 5 may be designed to be L-shaped, wherein thetransverse limb 6 is longer than thelongitudinal limb 7. In the variant shown, the transverse limb has alength 12, for example 150 millimeters (150 mm) and the longitudinal limb has alength 13, for example 105 millimeters (105 mm). Thelength 12 may be greater than thelength 13. - The
transverse limb 6 additionally has afront face 9. Thesupport 5 is fastened at the transverse limb to theouter face 11 of thelongitudinal member 2 at aspacing 15, for example of 200 millimeters (200 mm) from the front bumper. In the variant shown, the spacing 15 is measured from the front face of the transverse limb to thefront bumper 3. The spacing is fixed such that, in the case of a collision with an obstacle with a small overlap, theregion 4 of thefront bumper 3 protruding in the lateral direction over the longitudinal member is pushed against thesupport 5 and thesupport 5 is pushed with itslongitudinal limb 7 against theouter face 11 of thelongitudinal member 2. In an advantageous variant, thelongitudinal limb 7 has anend face 10, wherein in the case of a collision theend face 10 is pushed against theouter face 11 of thelongitudinal member 2. This permits an efficient deflection of the load. - The detail shown in
FIG. 1 of a chassis according to the disclosure after a collision is shown schematically inFIG. 2 . Due to the collision with anobstacle 19 with a small overlap, thelongitudinal member 2 has been deformed. In the situation shown, thetransverse limb 6 has also been deformed. The transverse limb has been bent around a vertical axis, i.e. z-axis. The pushing together of theregion 4 of the front bumper protruding over the longitudinal member, thetransverse limb 6 supported by thelongitudinal limb 7 and thelongitudinal member 2 produces a stable structure which deflects the load caused by the impact and pushes the vehicle to the side. - In
FIG. 3 a detail of a motor vehicle in a view from below is shown. The motor vehicle may be a truck, a van, a mini-van or a passenger motor vehicle. The motor vehicle 20 includes a number ofwheels 21, adrive train 22, a back-upstructure 16 which, in particular, includes a driver's cab or a passenger compartment and a chassis 1. In the variant shown, the chassis 1 is located in a position for fastening thedrive train 22 by which afront line 23 is defined. In the variant shown, thefront face 9 of thetransverse limb 6 of thesupport 5 is aligned with thefront line 23 of the position of thedrive train 22. The obstacle used for a crash test is identified by thereference numeral 19. -
- 1 Chassis
- 2 Longitudinal member
- 3 Front bumper
- 4 Region protruding over the longitudinal member
- 5 Support
- 6 Transverse limb
- 7 Longitudinal limb
- 8 End face
- 9 Front face
- 10 End face
- 11 Outer face
- 12 Length (y-axis)
- 13 Length (x-axis)
- 14 Longitudinal axis
- 15 Spacing between front bumper and front face
- 16 Back-up structure
- 19 Obstacle
- 20 Motor vehicle
- 21 Wheel
- 22 Drive train
- 23 Front line
Claims (12)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018207597 | 2018-05-16 | ||
DE102018207597.2A DE102018207597B3 (en) | 2018-05-16 | 2018-05-16 | Chassis for a motor vehicle |
DE102018207597.2 | 2018-05-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20190351945A1 true US20190351945A1 (en) | 2019-11-21 |
US10850773B2 US10850773B2 (en) | 2020-12-01 |
Family
ID=68053239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/408,728 Active 2039-07-30 US10850773B2 (en) | 2018-05-16 | 2019-05-10 | Chassis for a motor vehicle |
Country Status (3)
Country | Link |
---|---|
US (1) | US10850773B2 (en) |
CN (1) | CN110497871A (en) |
DE (1) | DE102018207597B3 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020105300B3 (en) * | 2020-02-28 | 2021-02-18 | Bayerische Motoren Werke Aktiengesellschaft | Modular system for the production of construction variants of a passenger car |
WO2021190724A1 (en) * | 2020-03-23 | 2021-09-30 | Volvo Truck Corporation | A vehicle comprising a collision protection structure |
KR20210137753A (en) * | 2020-05-11 | 2021-11-18 | 현대자동차주식회사 | Vehicle front-end structure |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4122887B2 (en) * | 2002-08-05 | 2008-07-23 | 日産自動車株式会社 | Body front structure |
JP2006224728A (en) | 2005-02-15 | 2006-08-31 | Toyota Motor Corp | Bumper reinforcement structure for vehicle with frame |
DE102011004105A1 (en) | 2011-02-15 | 2012-08-16 | Bayerische Motoren Werke Aktiengesellschaft | vehicle body |
JP5817137B2 (en) | 2011-02-16 | 2015-11-18 | マツダ株式会社 | Vehicle front structure |
DE102011116448A1 (en) | 2011-10-20 | 2013-04-25 | Gm Global Technology Operations, Llc | Deformation device for motor car, has deformation unit fixed in or at wheel housing, where deformation unit is arranged at distance from wheel unit in normal arrangement and wheel unit is deformed and/or reduced in deformation arrangement |
US20140062129A1 (en) | 2012-09-04 | 2014-03-06 | GM Global Technology Operations LLC | Impact deflection and absorption structure |
US8807632B2 (en) | 2012-10-02 | 2014-08-19 | Toyota Motor Engineering & Manufacturing North America, Inc. | Small overlap frontal impact countermeasure |
WO2014088117A1 (en) * | 2012-12-07 | 2014-06-12 | トヨタ自動車株式会社 | Vehicle body end structure |
US8967701B2 (en) * | 2013-03-01 | 2015-03-03 | Ford Global Technologies, Llc | Integrated shotgun rail deflector |
JP5924308B2 (en) | 2013-06-03 | 2016-05-25 | トヨタ自動車株式会社 | Body front structure |
JP6048318B2 (en) | 2013-06-05 | 2016-12-21 | トヨタ自動車株式会社 | Body front structure |
DE102013012769A1 (en) | 2013-07-31 | 2015-02-05 | Daimler Ag | Protective device for a motor vehicle |
JP5907126B2 (en) | 2013-08-02 | 2016-04-20 | トヨタ自動車株式会社 | Auto body front structure |
US8991903B1 (en) | 2013-10-04 | 2015-03-31 | Ford Global Technologies, Llc | Deflector-catcher for small overlap vehicle impacts |
US9421927B2 (en) * | 2014-03-27 | 2016-08-23 | GM Global Technology Operations LLC | Vehicle load transfer apparatus |
US9272679B1 (en) | 2014-10-16 | 2016-03-01 | Toyota Motor Engineering & Manafacturing North America, Inc. | Bumper assembly and side support linking members |
US9487237B1 (en) * | 2015-08-27 | 2016-11-08 | Atieva, Inc. | Swiveling front suspension subframe |
US20170073014A1 (en) | 2015-09-11 | 2017-03-16 | Ford Global Technologies, Llc | Energy Transferring Apparatus of a Vehicle |
DE102015012140B4 (en) | 2015-09-16 | 2020-06-10 | Audi Ag | Protective device of a motor vehicle for a frontal collision with an obstacle with a small latitude coverage |
JP6462552B2 (en) * | 2015-10-26 | 2019-01-30 | 本田技研工業株式会社 | Body front structure |
US10189503B2 (en) * | 2017-01-12 | 2019-01-29 | Nissan North America, Inc. | Vehicle body structure |
US10029733B1 (en) * | 2017-01-12 | 2018-07-24 | Nissan North America, Inc. | Vehicle body structure |
US10526017B2 (en) * | 2018-04-30 | 2020-01-07 | Nissan North America, Inc. | Vehicle body structure |
-
2018
- 2018-05-16 DE DE102018207597.2A patent/DE102018207597B3/en active Active
-
2019
- 2019-05-10 CN CN201910390254.1A patent/CN110497871A/en active Pending
- 2019-05-10 US US16/408,728 patent/US10850773B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN110497871A (en) | 2019-11-26 |
DE102018207597B3 (en) | 2019-10-17 |
US10850773B2 (en) | 2020-12-01 |
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